But who knows, they probably did the math better than me, random internet commenter #9643.
The centre map file was last modified on October 18th last year, though the modification may have been to some other part of the map.
Raspberry Pi is the kind of product that could really benefit from a quality retail experience. I suspect there are a lot of parents who might have heard of Raspberry Pi, but don't really know what it's all about and don't have the confidence to buy a kit and try it out with their kids. If you've sold someone a Raspberry Pi and given them good advice on how to use it, you're substantially more likely to go on to sell them a robot kit or a 3d printer or a bunch of Adafruit goodies.
I don't know about the experience, but this product has some retail presence in US & Canada.
On just sales income it seems doubtful.
But in the end the Raspberry Pi Foundation is a non-profit whose goal is to get kids interested in programming, and give them the hardware they can experiment on without worrying about breaking your parents' or school computer. Sales to "hackers" is just a side business.
An event space / showroom can help with that mission for kids and parents who might not buy online and get started on their own.
I'm not sure about that. The Raspberry Pi foundation is big on the education market. I can definitely imagine a parent having heard about a raspberry pi but not really understanding what it is in detail wanting to talk it through with someone.
I can also imagine them running hack days for kids there (kind of like games workshop allow you to play with warhammer in their shop).
As a multiple* RPi user, it's always heartening to see them doign well.
*(1) media player with TV, (2) wireless music player in kitchen, (3) VPN server in the cupboard, (4) temperature sensor in the garage.